Flier



M fm

fM/M@ W w s Aut.

l Jan. l2 1926.

Patented dan. l2, 92@

UNITED' STATE Para NT orties.i

I-IJALMAR G. CARLSON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO ROCKWOODSPRTNKLER COMPANY OF MASSACYUSETTS, OF WORCESTER, MASSACHUSETTS, A.

CORPORATION OF MASSACHUSETTS.

FLIIER.

Application led September 27, 1923.

To all vwhom t may concern Be it known that I, HJALMAR G. CARLsoN, acitizen of the United States, residing at lllorcester, in the county oflVorcester and State of Massachusetts, have invented a new and usefulFlier, of which the following is a specification.

This nventionrelates to a flier for use on a spinning machine. Theprincipal object of this invention is to provide a practical, convenientand economical construction of flier which can be made .of die-pressedsheet metal and thus avoid turning and other machining processes thathave been necessary heretofore in the manufacture of these fliers. Anespecially important advantage lies in the fact that on account of themethod of manufacture in dies, they always come alike and do not requirethe expensive balancing heretofore necessary.

Another object of the invention is to provide the crown of the frame insuch form that although made of die-pressed sheet metall, it willnot'have any cavities which catch the air in rotating and causewhistling and other noises and alsoproduce air resistance that retardsthe rotation and increases the power required as well as setting upvibrations.

Another object of the invention is to provide a hollow `roving guide insuch form that it can be made from a flat piece of sheet metal lientinto circular form and will be provided in the operation of bending itwith. a slit through it from end to end for receiving the roving' inthreading it and having the necessary irregularity for. preventingaccidental unthreading.

The invention also involves the manufacture of the crown in such formthat the roving guide, counterbalancing arm and central tubular bearingcan be mounted accurately and in balance by inserting them throughopenings formed in the crown in the process of manufacture and thensecuring` them by simple brazing operations or in any other convenientWay.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is afront elevation of a part of a spinning frame showing a preferred formof Serial' No. 665,210.

filer in position for winding the roving thereon;

Fig. 2 is an end view of the flier itself on enlarged scale without thebobbin or other features;

Fig. 3 is a front View of the same;

Fig. 4 is a sectional view of one of the arms of the crown on the line 4-4 of Fig. 3,

yand

l Fig. 5 is a transverse sectional view on the line 5 5 of Fig. 3 of thetubular roving guideto show the construction of the lugs for locatingthe presser ring. i

Fliersfor the general purpose described have been made very eXpensivelyof forgings as a general thing. The necessity of securmg delicate andaccurate balance vis well recognized in this industry and this is such aspecial art that men have to be employed for shaping and balancing thefliers who have spent a life time in that work. It has become a skilledart to such an extent that the been found also that in the attempts thathave been made to make them of sheet metal, hollow spaces have beenformed in them which entrap the air, greatly increase the air resistanceand the power required to run them, result in irregularities in theirrotation and produce whistling noises that add to the confusion of thespinning room. Both the roving guide and the arm which halances it havehad to be welded on the crown in an expensive man-ner, one resulting inmuch inaccuracy; so that, after being welded, they have to be balancedup by those skilled in the art. sheetv metal fliers that have beenproposed heretofore to accurately center the top bear-` lt is diitcult,with these ing cylinder. lf that is not centered correctly1 obviouslythe balance is all olf, no matter how well the rest of the device ismade. For the purpose of obviating these ditliculties l make the flierin the following way.

ln the first place, the center bearing stem or neck 10 is pressed out bysheet metal working processes into the form of a cylinder having atapering inner passage. The top 11 of is drawn in and centrallyperforated so as -to provide the proper supporting bearing to carry theflier on the spindle for the bobbin. The perforatioii is formed in thedie pressing operation and therefore accurately made. This neck isprovided with an opening l2 in the side for the usual purposef Thus allnecks can be cheaply and accurately reduplicated` The crown 15 is formedsolid by die-pressing operations not constituting a part of the presentinvention and in such a way that its upper surfaces are substantiallyflat except for thread-guiding groove 16 which is formed thereon in theact of pressing one arm of the crown. On the lower side the crown ispreferably convex in cross section so that it may have stream linesurfaces. Thus these edges will cut the air with a minimum ofdisturbance thereto and hence with a minimum use of power to rotate theflier. Such stream line surfaces also reduceV vibration and whistling toa minimum.

Tn the act of forming the crown it is provided with three cylinders 18,19 and 2O all integral with the arms of the crownmand formed by diepressing operations. The central cylinder 19 constitutes a hub aroundthe central bearing stem 10 and is formed of such size and internalcylindrical shape as to just receive the stem 10, which is fitted intoit and may be secured to it by any simple and easy means such as brazingor pinning.

The other two cylinders i8 and i2() also constitute hubs, the formerreceiving a rod El constituting` the balance rod which mayv be formed ofa solid piece of wire if desired. The other cylinder 20 is provided witha split perforation through it for receiving the butt of the hollowroving guide 25.

the perforations in the two hubs 18 and 2() respectively without anyfinishing of either hub except that accomplished in the die press.lilach is fitted into its respective hub and brazed in position and thusthey are permanently mounted. As these parts are all formed up in thedies, they come uniform and, the dies having been correctly designed forthe product the fliers as tney are assembled are found to be evenlybalanced and substantially ready for applic-ation to the iiier frame.

The roving guide Q5 is formed from a fiat piece of metal out outoriginally to sui-h The `rod and the hollow guide Q5 exactly lit formthat at one edge it protrudes at 2G and the other edge has acomplementary shape at 27. This piece of sheet metal is bent and formedinto a cross section having a circular form so that these two edges,which are smoothed previous to the bending operation, are brought nearlyinto contact with each other in the finished article. They furnishbetween them a threading` slit 35 eX- tending throughout the length ofthe guide, a-nd ofi'set near the center for the usual pur pose. Theedges of this slit require but a minimum of hand finishing after theguide is made up and shaped into its final form. The guide is formedwith a tapered passage through it and its final form is, as usual,

slightly tapering, having the general form of a cone.

ln the flat blank from which the roving guide is made, two projections28 are formed near the center line of the blank and near one end. Thesetwo projections are of sub- `stantially the same thickness as the restof the walls of the thread guide and have `a passage 29 between themwhich is of uniform width and smooth finish as produced by the dies.This groove receives the ring end 30` of the presser 31, the other'endrof which is provided with a circular socket, fitting on the end1 ofthe roving guide, and with the usual pac. l

Thus the presser may be permanently located and centered in position onthe roving guide without the welding of any projections on the latterand without the necessity of ordinary hand finishing operations, the

parts being finished accurately enough in the dies and requiring only tobe polished. The roving guide is comparatively light, does not have -tobe bored out through the center and is of maximum strength. The wholedevice presents no surfaces that entrap the air to cause the whistlingand other difliculties above mentioned. As the parts are formed cheaplyand quickly in dies, are accurately finished thereby, are in truebalance when assembled and their production and assembly do not requireexpensive hand labor, therefore the cost of manufacture is greatlyreduced under that heretofore incurred in this art.

Although I have illustrated. and described only a single form of theinvention I am aware of the fact that many modications can be madetherein by any person skilled in the artwithout departing from the scopeof the invention as expressed in the claims. Therefore, l do not wish tobe limited to all the details of construction herein shown anddescribed, but what I claim is 1. As an article of manufacture, a fliercomprising a crown formed of a single piece of pressed solid metalhaving two diverging arms having a substantially stream line section andeach terminating in an integral hollow hub, one having secured therein ahollow pressed sheet metal roving guide and the other a balancing armparallel with said guide.

2. As an article of manufacture, a flier comprising a crown at the topformed of a single piece of die-pressed sheet metal have ing twodiverging arms of a material thickness at their ends, each terminatingin an integral hollov7 hub, one for receiving the balancing arm and theother having secured therein a hollow roving guide parallel with saidbalancing arm.

3. As an article of manufacture, a flier comprising a die-pressed crownhaving a central hub perforated centrally and provided with adie-pre'ssed sheet metal bearing stem secured therein and having twointegral arms projecting oppositely from the hub terminating in twointegral cylindrical hubs pressed from the metal of the arms, one havingfixed therein a hollow roving guide adapted to Isupport the presser armsand the other having a balancing bar secured therein and extendingtherefrom parallel with the roving guide.

4. As an article of manufacture, a liier comprising a die pressed solidcrown havingl a central hub perforated centrally and provided with a diepressed sheet metal bearing stem extending therethrough and securedtherein and having two integral arms projecting oppositely from the hubof convex shape in cross section on their inner surfaces and terminatingin two integral cylindrical hubs pressed from the metal of the arms, onehaving fixed therein a hollow roving guide adapted to support thepresser and the other having a balancing bar secured therein andextending therefrom parallel with the guide.

5. As an article of manufacture, a flier comprising a crown at the topformed of ya single piece of pressed metal having two diverging armshaving a cross section of a material thickness at its center andgradually tapering down at its opposite edges and each terminating in anintegral hollow hub, one for receiving the balancing arm and the otherhaving secured therein a hollow roving guide parallel with saidbalancing arm, said guide being formed of a single piece of sheet metalbent into shape and having its opposite edges of similar shape broughtnearly in contact with each other to provide a longitudinal slitbetweensaid edges through which the roving can be inserted, the hubhaving been split in line with said slit for that purpose.

6. As an article of manufact-ure, a flier comprising a crown formed of asingle piece of pressed metal having two diverging arms terminating inan integral hollow hub, one having'secured therein the balancing arm andthe other having secured therein a hollow roving guide parallel withsaid balancing arm, said roving guide being formed of a single piece ofsheet metal bent into shape and having its opposite edges brought nearlyin contact with each other to provide a longitudinal slit between saidedges through which the roving can be inserted, one of said edgesprotruding and the other of a shape to substantially .fit it and pre'-vent the accidental disengagement of the roving.

7. As an article of manufacture, a roving guide for a flier comprising apiece of sheet metal having its opposite edges of similar shape but oneprotruding and the other concave, said piece of metal being bent intocircular form so as to bring its edges nearly together and form betweenthem a. longitudinal but olf-set slit for receiving the roving inthreading and preventing its accidental unthreading.

8. As an article of manufacture, a roving guide for a flier consistingof a piece of sheet metal having its opposite edges of similar shape butcomplementary to each other, said edges being brought nearly together soas to form between them a longitudinal but irregular slit for the rovingand having near one end thereof a pair of integral hollow projectionsformed from the same piece of sheet metal, spaced apart to form asupport and guide for the ring of the presser.

9. As an article of manufacture, a flier having a. crown the arms ofwhich are flat in cross section on top and convex on the bottom withthin edges for the purpose described.

In testimony whereof I have hereunto affixed my signature.

HJALMAR Gr. CARLSON.

